Name Frequency Notes White Dot 465.575 MHz GMRS Black Dot 462.625 MHz GMRS Orange Dot 462.675 MHz GMRS Brown Dot 464.500 MHz Itinerant Yellow Dot 464.550 MHz Itinerant Silver Star 467.850 MHz Gold Star 467.875 MHz Red Star 467.900 MHz Blue Star 467.925 MHz 469.500 MHz 469.550 MHz
GENERAL MOBILE RADIO SERVICE:GMRS is licensed 15 channels ( 1 - 7 & 15 - 22 ) limited to 50 watts with FM voice. GMRS requires a no-test license, obtainable with an application and fee. GRMS can provide greater base to mobile range with far less interference then CB and FRS. The costs may be higher but a base station with external antenna and repeaters are allowed with GRMS. Unless you plan to use a higher powered base station or repeater I see no reason to obtain a GMRS license.
Citizens' Band Radio Citizens' Band radio (often shortened to CB radio) is a system of short-distance radio communications between individuals on a selection of 40 channels within the 27-MHz (11 m) band. The CB radio service is distinct from FRS, GMRS, MURS, or amateur ("ham") radio. CB does not require a license in the United States and, unlike amateur radio, it may be used for business as well as personal communications. Like many other two-way radio services, Citizens' Band channels are shared by many users. CITIZENS BAND: ( CB ) Unlicensed 40 channels limited to 4 watts for AM or 12 watts for SSB voice modulation. If you decide to use CB install a good base station antenna. Every vehicle used during a disaster should be equipped with a CB radio. A good base station has a range of 10 miles or more. A big disadvantage of CB is interference and lack of security.
CB could be used to communicate with nearby sites or groups. Every site monitors the national emergency channel 9 ( 27.065 MHz ). Place a call on channel 9 using tactical call signs or handles. If the conversation lasts longer than a few seconds move to another [pre-arranged] channel. When the call is finished all sites return to monitoring channel nine.
CB Radio Channels (FCC) | | Channel | Frequency | Channel | Frequency | Channel | Frequency | Channel | Frequency | | 1 | 26.965 MHz | 11 | 27.085 MHz | 21 | 27.215 MHz | 31 | 27.315 MHz | | 2 | 26.975 MHz | 12 | 27.105 MHz | 22 | 27.225 MHz | 32 | 27.325 MHz | | 3 | 26.985 MHz | 13 | 27.115 MHz | 23 | 27.255 MHz | 33 | 27.335 MHz | | 4 | 27.005 MHz | 14 | 27.125 MHz | 24 | 27.235 MHz | 34 | 27.345 MHz | | 5 | 27.015 MHz | 15 | 27.135 MHz | 25 | 27.245 MHz | 35 | 27.355 MHz | | 6 | 27.025 MHz | 16 | 27.155 MHz | 26 | 27.265 MHz | 36 | 27.365 MHz | | 7 | 27.035 MHz | 17 | 27.165 MHz | 27 | 27.275 MHz | 37 | 27.375 MHz | | 8 | 27.055 MHz | 18 | 27.175 MHz | 28 | 27.285 MHz | 38 | 27.385 MHz | | 9 | 27.065 MHz | 19 | 27.185 MHz | 29 | 27.295 MHz | 39 | 27.395 MHz | | 10 | 27.075 MHz | 20 | 27.205 MHz | 30 | 27.305 MHz | 40 | 27.405 MHz |
The maximum legal CB power output level, in the U.S., is four watts for AM and 12 watts (peak envelope power or "PEP") for SSB, as measured at the antenna connection on the back of the radio. However, illegal external linear amplifiers are frequently used. In the 1970s the FCC banned the sale of linear amplifiers capable of operation from 24 to 35 MHz to discourage their use on the CB band, though the use of high power amplifiers by lawless pirate operators continued. Late in 2006 the FCC amended the regulation to only exclude 26 to 28 MHz. Extremely lax enforcement of these regulations by the FCC has led to manufacturers of illegal linear amplifiers openly advertising their products for sale, and many CB dealers carry these and other amplifiers in their product lines and include them in catalogs. Rules and regulations for CB operations can be found here.
Marine VHF Radio
Operating procedure
The accepted conventions for use of marine radio are collectively termed "proper operating procedure." These conventions include: Listening for 2 minutes before transmitting Using Channel 16 only to establish communication (if necessary) and then switch to a different channel using a set of international "calling" procedures such as the "Mayday" distress call, the "Pan-pan" urgency call and "Securité" navigational hazard call. using "pro-words" based on the English language such as Acknowledge, All after, All before, All stations, Confirm, Correct, Correction, In figures, In letters, Over, Out, Radio check, Read back, Received, Repeat, Say again, Spell, Standby, Station calling, This is, Wait, Word after, Word before, Wrong using the NATO phonetic alphabet: Alpha, Bravo, Charlie, Delta, Echo, Foxtrot, Golf, Hotel, India, Juliet, Kilo, Lima, Mike, November, Oscar, Papa, Quebec, Romeo, Sierra, Tango, Uniform, Victor, Whiskey, X-ray, Yankee, Zulu using a phonetic numbering system based on the English language: Wun, Too, Tree, Fow-er, Fife, Six, Sev-en, Ait, Nin-er, Zero, Decimal
Slightly adjusted regulations can apply for inland shipping, such as the Basle rules in Western Europe. Marine VHF radio is sometimes illegally operated inland. Since enforcement is often the job of the local coast guard, enforcement away from the water is sometimes difficult.
Marine VHF Channels and Frequencies | | Channel Number | Frequencies (MHz) | | | Ⓐ Usually ship stations | Ⓑ Usually coast stations | United States | | 0 | 156.000 | 160.600 | | | 1 | 156.050 | 160.650 | | | 2 | 156.100 | 160.700 | | | 3 | 156.150 | 160.750 | Ⓐ Illegal for Pulbic Use | | 4 | 156.200 | 160.800 | | | 5 | 156.250 | 160.850 | | | 6 | 156.300 | 160.900 | | | 7 | 156.350 | 160.950 | | | 8 | 156.400 | 161.000 | | | 9 | 156.450 | 161.050 | Calling Ⓐ, Commerical and non-commercial. | | 10 | 156.500 | 161.100 | | | 11 | 156.550 | 161.150 | | | 12 | 156.600 | 161.200 | | | 13 | 156.650 | 161.250 | ridge-to-Bridge safety Ⓐ: Vessels > 20m must maintain watch, Tx limited to 1 watt. | | 14 | 156.700 | 161.300 | | | 15 | 156.750 | 161.350 | | | 16 | 156.800 | 161.400 | International distress, safety and callingⒶ USA: All vessels equipped with VHF must maintain watch. | | 17 | 156.850 | 161.450 | | | 18 | 156.900 | 161.500 | | | 19 | 156.950 | 161.550 | | | 20 | 157.000 | 161.600 | | | 21 | 157.050 | 161.650 | Ⓐ U.S. Coast Guard Only | | 22 | 157.100 | 161.700 | Ⓐ U.S. Coast Guard Only-Public working channel 2 | | 23 | 157.150 | 161.750 | Ⓐ U.S. Coast Guard Only | | 24 | 157.200 | 161.800 | | | 25 | 157.250 | 161.850 | | | 26 | 157.300 | 161.900 | | | 27 | 157.350 | 161.950 | | | 28 | 157.400 | 162.000 | | | 60 | 156.025 | 160.625 | | | 61 | 156.075 | 160.675 | Ⓐ Illegal for Pulbic Use | | 62 | 156.125 | 160.725 | | | 63 | 156.175 | 160.775 | | | 64 | 156.225 | 160.825 | Ⓐ Illegal for Pulbic Use | | 65 | 156.275 | 160.875 | | | 66 | 156.325 | 160.925 | | | 67 | 156.375 | 160.975 | | | 68 | 156.425 | 161.275 | Non-Commercial Ⓐ | | 69 | 156.475 | 161.075 | Non-Commercial Ⓐ | | 70 | 156.525 | 161.125 | | | 71 | 156.575 | 161.175 | Non-Commercial Ⓐ | | 72 | 156.625 | 161.225 | Non-Commercial ship-to-ship Ⓐ | | 73 | 156.675 | 161.275 | | | 74 | 156.725 | 161.325 | | | 75 | 156.775 | 161.375 | | | 76 | 156.825 | 161.425 | | | 77 | 156.875 | 161.475 | | | 78 | 156.925 | 161.525 | Non-Commercial Ⓐ | | 79 | 156.975 | 161.575 | | | 80 | 157.025 | 161.625 | | | 81 | 157.075 | 161.675 | Ⓐ U.S. Government Use Only | | 82 | 157.125 | 161.725 | Ⓐ U.S. Government Use Only | | 83 | 157.175 | 161.775 | Ⓐ U.S. Government Use Only | | 84 | 157.225 | 161.825 | | | 85 | 157.275 | 161.875 | | | 86 | 157.325 | 161.925 | | | 87 | 157.375 | 161.975 | Automatic Identification System Ⓑ | | 88 | 157.425 | 162.025 | Automatic Identification System Ⓑ |
 A portable VHF which is both ip67, GMDSS and ATEX approved.
A VHF set and a VHF channel 70 DSC set, the DSC on top, both produced by Sailor
More on Coast Guard Frequencies
|
|
|
|
|
x |
|
